It is extremely difficult to reproduce the subtle, faint pastel colors of a rainbow on a printed page, or even in color photograph, partly because a rainbow contains colors that are not within the gamut that can be produced by mixing three primaries, and partly rainbows are faint; printed depictions of them almost invariably have been enhanced to make them look brighter and more intensely colors than they really are. | It is extremely difficult to reproduce the subtle, faint pastel colors of a rainbow on a printed page, or even in color photograph, partly because a rainbow contains colors that are not within the gamut that can be produced by mixing three primaries, and partly rainbows are faint; printed depictions of them almost invariably have been enhanced to make them look brighter and more intensely colors than they really are. |